CN102830214B - Dynamic physical simulation experiment method for water invasion of fractured gas reservoir with bottom water and device thereof - Google Patents
Dynamic physical simulation experiment method for water invasion of fractured gas reservoir with bottom water and device thereof Download PDFInfo
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- CN102830214B CN102830214B CN201210291416.4A CN201210291416A CN102830214B CN 102830214 B CN102830214 B CN 102830214B CN 201210291416 A CN201210291416 A CN 201210291416A CN 102830214 B CN102830214 B CN 102830214B
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- 239000011901 water Substances 0.000 title claims abstract description 69
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- 238000004088 simulation Methods 0.000 title claims abstract description 6
- 239000011435 rock Substances 0.000 claims abstract description 113
- 239000003570 air Substances 0.000 claims description 60
- 239000003672 gas field water Substances 0.000 claims description 35
- 239000011148 porous materials Substances 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 238000005755 formation reactions Methods 0.000 claims description 10
- 280000063503 Clamper companies 0.000 claims description 9
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Abstract
Description
Technical field
The present invention relates to oil-gas field development core experiment analysis technology, particularly relate to and a kind ofly can dynamically carry out experimental technique and the device of modeling effort by fracture bottomwater gas field water enchroachment (invasion).
Background technology
In oil-gas field development field, all there is edge-bottom water in most gas reservoir, in gas reservoir development process, often water enchroachment (invasion) occurs, particularly Fractured Gas Reservoir, edge-bottom water be easy to alter along crack to shaft bottom into, water enchroachment (invasion) is very large on the impact of gas well gas production rate, in a lot of gas reservoir development, all have performance.
At present, carry out the method mainly method such as material balance, Production development analysis of Fractured Gas Reservoir water enchroachment (invasion) dynamic studies, such as professional magazine " gas industry ", 2006, " identification of edge water gas reservoir Water Invasion Characteristics and Mechanisms " article that 26 (3) phases published, author He Xiaodong etc.; " special reservoirs ", " fractured gas reservoir withwater water influx rate Forecasting Methodology " article that in April, 2010 publishes, author Chen Jun, Ao Yaoting, Zhang Aihua etc.Above-mentioned document is all adopt the method such as material balance, Production development analysis to carry out Fractured Gas Reservoir water enchroachment (invasion) dynamic studies.And said method all cannot dynamically carry out modeling effort adopting in laboratory laboratory facilities fracture bottomwater gas field water enchroachment (invasion), be unfavorable for carrying out correlative study work.
Summary of the invention
The object of this invention is to provide a kind of can under lab carry out Fractured bottomwater gas field water enchroachment (invasion) dynamic similation research, test data is accurate, equipment is simple, be easy to operation Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments device.
Another object of the present invention is to provide and a kind of uses above-mentioned experimental provision, under lab can carry out the Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments method that the research of Fractured bottomwater gas field water enchroachment (invasion) dynamic similation, test data are accurate, easy to operate.
For achieving the above object, the present invention proposes a kind of Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments device, comprise: core holding unit, comprise clamper cylindrical shell, rubber sleeve is provided with vertically in described clamper cylindrical shell, described rubber sleeve has the accommodating cavity for holding rock core to be measured, has certain interval and form ring-type confined pressure space between the outer wall of described rubber sleeve and described clamper cylinder inboard wall; Crack rock sample, is arranged in described accommodating cavity; High pressure syringe pump, be connected with the confined pressure space of described core holding unit by the first hollow tubular, for adding confined pressure in core holding unit, the first hollow tubular is provided with the first controlled valve, for controlling being communicated with and disconnection of described high pressure syringe pump and described confined pressure space; The air feed container be arranged in parallel and water supply container, the inlet end of described core holding unit is connected to by the second hollow tubular, in described air feed container contents, gases at high pressure are housed, described water supply container content is equipped with high-pressure water body, connecting line between described air feed container and described second hollow tubular is provided with second switch valve, the connecting line between described water supply container and described second hollow tubular is provided with the 3rd controlled valve; The moisture trap be arranged in series and gas meter, described moisture trap is connected to the endpiece of described core holding unit by the 3rd hollow tubular, described gas meter is connected with described moisture trap by gas piping, and described 3rd hollow tubular is provided with the 4th controlled valve.
Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments device as above, wherein, described first hollow tubular, the second hollow tubular and the 3rd hollow tubular is respectively equipped with the first pressure transducer, the second pressure transducer and the 3rd pressure transducer.
Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments device as above, wherein, the diameter of described crack rock sample is 10cm, and length is 20cm.
Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments device as above, wherein, described core holding unit, described high pressure syringe pump, described air feed container and the highest withstand voltage of described water supply container are 70MPa.
Present invention also offers a kind of Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments method, described experimental technique adopts Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments device as above, and this experimental technique comprises the following steps: the rock sample of choice experiment test; Rock sample is carried out man seam, forms crack rock sample; Crack rock sample is loaded core holding unit, and adds predetermined confined pressure; In the rock core hole of crack rock sample, carry saturated air by air feed container, when rock core pore pressure balance is to experiment desirable value, stops saturated air and close air feed container; High-pressure water body is loaded in water supply container; Open water supply container, the saturated air in core holding unit is communicated with water body; By closing the first controlled valve, second switch valve and the 3rd controlled valve, open the 4th controlled valve, make crack rock sample from gas in endpiece release rock core hole, record parameters data, terminate until gases at high pressure and high-pressure water body are tested when the flow of endpiece is zero.
Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments method as above, wherein, the rock sample of described choice experiment test refers to selective rule piston-shaped free from flaw rock core, and the diameter of rock core is 10cm, and length is 20cm.
Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments method as above, wherein, the described man seam that carried out by rock sample refers to and makes rock core inside produce cracking initiation crack rock sample by making seam instrument.
Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments method as above, wherein, describedly loads core holding unit by crack rock sample, and adds predetermined confined pressure and comprise: the highest withstand voltage of described core holding unit is 70MPa, and maximum temperature is 150 DEG C; High pressure syringe pump to the confined pressure space conveying high-pressure medium of core holding unit, for exerting pressure to the rock core be wrapped in core holding unit; The overburden pressure that predetermined confined pressure value and rock core bear under formation conditions is close, and its value is undertaken calculating and controlling by depth of stratum residing for rock sample.
Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments method as above, wherein, describedly in the rock core hole of crack rock sample, carry saturated air by air feed container, when rock core pore pressure balance is to experiment desirable value, stop saturated air and close air feed container comprising: the gases at high pressure in air feed container are dry air or nitrogen; Described rock core pore pressure balance refers to that in the hole of rock core each position, gaseous tension is consistent; Pore pressure size should be close with the original gas-bearing formation pressure of goal in research block; Closing air feed container makes high-pressure air source and rock core disconnect, and rock sample is in the pressure system of self-equilibrating.
Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments method as above, wherein, described by closedown first controlled valve, second switch valve and the 3rd controlled valve, open the 4th controlled valve, make crack rock sample from gas in endpiece release rock core hole, record parameters data, comprise until gases at high pressure and high-pressure water body test end when the flow of endpiece is zero: control airshed size by the 4th controlled valve, with the gas of certain airshed release rock core pore interior and water body; Record airshed, discharge, accumulative airshed, accumulative discharge, gas-bearing formation pressure, experimental period data; The frequency of record experiment parameter is that interval is once per minute.
Compared with prior art, the present invention has following characteristics and advantage:
The present invention under lab can carry out the research of Fractured bottomwater gas field water enchroachment (invasion) dynamic similation, has the advantage that test data is accurate, equipment simple, be easy to operation.
Accompanying drawing explanation
Accompanying drawing described here only for task of explanation, and is not intended to limit scope disclosed by the invention by any way.In addition, the shape of each parts in figure and proportional sizes etc. are only schematic, for helping the understanding of the present invention, are not the shape and the proportional sizes that specifically limit each parts of the present invention.Those skilled in the art under the teachings of the present invention, can select various possible shape and proportional sizes to implement the present invention as the case may be.
Fig. 1 is the structural representation of Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments device of the present invention.
Description of reference numerals:
1-core holding unit; 2-crack rock sample; 3-high pressure syringe pump; 4-air feed container; 5-water supply container; 6-moisture trap; 7-gas meter;
11-first hollow tubular; 12-second hollow tubular; 13-the 3rd hollow tubular; 14-gas piping;
21-first controlled valve; 22-second switch valve; 23-the 3rd controlled valve; 24-the 4th controlled valve;
31-first pressure transducer; 32-second pressure transducer; 33-the 3rd pressure transducer.
Embodiment
By reference to the accompanying drawings with the description of the specific embodiment of the invention, can clearly understand details of the present invention.But the specific embodiment of the present invention described here, only for explaining object of the present invention, and can not to be understood as by any way be limitation of the present invention.Under the teachings of the present invention, technician can conceive based on distortion possible arbitrarily of the present invention, and these all should be regarded as belonging to scope of the present invention.
Please refer to Fig. 1, is the structural representation of Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments device of the present invention.As shown in the figure, the Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments device that the present invention proposes comprises: core holding unit 1, crack rock sample 2, high pressure syringe pump 3, air feed container 4 and water supply container 5, moisture trap 6 and gas meter 7.Wherein, core holding unit 1 comprises clamper cylindrical shell, rubber sleeve is provided with vertically in clamper cylindrical shell, rubber sleeve has the accommodating cavity for holding rock core to be measured, there is between the outer wall of rubber sleeve and clamper cylinder inboard wall certain interval and form ring-type confined pressure space, concrete structure and the principle of work of core holding unit 1 are prior art, are not described in detail at this.Crack rock sample 2 is arranged in accommodating cavity, high pressure syringe pump 3 is connected with the confined pressure space of core holding unit 1 by the first hollow tubular 11, for adding confined pressure in core holding unit 1, first hollow tubular 11 is provided with the first controlled valve 21, for controlling being communicated with and disconnection of high pressure syringe pump 3 and confined pressure space.Air feed container 4 and water supply container 5 are arranged in parallel, and the inlet end of core holding unit 1 is connected to by the second hollow tubular 12, in air feed container 4 content, gases at high pressure are housed, water supply container 5 content is equipped with high-pressure water body, connecting line between air feed container 4 and the second hollow tubular 12 is provided with second switch valve 22, connecting line between water supply container 5 and the second hollow tubular 12 is provided with the 3rd controlled valve 23, is respectively used to control being communicated with and disconnection of air feed container 4 and water supply container 5 and core holding unit 1.Moisture trap 6 and gas meter 7 are arranged in series, moisture trap 6 is connected to the endpiece of core holding unit 1 by the 3rd hollow tubular 13, gas meter 7 is connected with moisture trap 6 by gas piping 14, namely one end of gas piping 14 is connected with the upper port of moisture trap 6, its other end is connected with the lower port of gas meter 7, with the air output of fracture detection rock sample and aquifer yield.3rd hollow tubular 13 is provided with the 4th controlled valve 24, for controlling air output and the aquifer yield of core holding unit.Like this, the present invention is achieved by said structure design and under lab carries out the research of Fractured bottomwater gas field water enchroachment (invasion) dynamic similation, has the advantage that test data is accurate, equipment simple, be easy to operation.
Further, the first hollow tubular 11, second hollow tubular 12 and the 3rd hollow tubular 13 are respectively equipped with the first pressure transducer 31, second pressure transducer 32 and the 3rd pressure transducer 33, for detecting the force value of each test point.
In the present invention, in order to meet experiment condition, the first hollow tubular 11, second hollow tubular 12 and the 3rd hollow tubular 13 all adopt high pressure resistant hollow pipeline; The the highest withstand voltage of core holding unit 1, high pressure syringe pump 3, air feed container 4 and water supply container 5 is 70MPa.
In an optional embodiment of the present invention, the diameter of crack rock sample is 10cm, and length is 20cm.Certainly, the size of crack rock sample also can be selected according to actual conditions, and the present invention is not restricted this.
Apparatus of the present invention principle of work and process as follows:
After man-made fracture rock sample 2 is loaded core holding unit 1, add confined pressure by high pressure syringe pump 3 to the crack rock sample 2 in core holding unit 1, simulation overburden pressure, closes the first controlled valve 21; Close the 3rd controlled valve 23 and the 4th controlled valve 24, open second switch valve 22, by the rock core hole input saturated air of air feed container 4 to rock sample 2, simulation Gas Reservoir virgin pressure, when saturated air to crack rock sample 2 rear and front end pressure all balances as testing required pressure, close second switch valve 22, crack rock sample 2 and air feed container 4 source of the gas are disconnected, is in the pressure system of Equilibrium; Water body in water supply container 5 is pressurized to consistent with rock core pore gas pressure, opens the 3rd controlled valve 23 and makes water body and gas-bearing formation keep being communicated with; Then, control the exploitation of airshed simulation gas well by the 4th controlled valve 24, observe and record the Water Invasion Characteristics in Fractured bottomwater gas field performance history.
Present invention also offers a kind of Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments method, adopt Fractured bottomwater gas field water enchroachment (invasion) dynamic physical modeling experiments device as above, this experimental technique comprises the following steps:
The rock sample of choice experiment test;
Rock sample is carried out man seam, forms crack rock sample;
Crack rock sample is loaded core holding unit, and adds predetermined confined pressure;
In the rock core hole of crack rock sample, carry saturated air by air feed container, when rock core pore pressure balance is to experiment desirable value, stops saturated air and close air feed container;
In water supply container, load high-pressure water body, water supply container refers to withstand voltage 70MPa, and volume is the rustless steel container of 1000ml, 2000ml or 5000ml.Load high-pressure water body to refer to load water at water supply container, be forced into experiment predetermined pressure, as 20MPa.
Open water supply container, the saturated air in core holding unit is communicated with water body;
By closing the first controlled valve, second switch valve and the 3rd controlled valve, open the 4th controlled valve, make crack rock sample from gas in endpiece release rock core hole, record parameters data, terminate until gases at high pressure and high-pressure water body are tested when the flow of endpiece is zero.
Further, the rock sample of choice experiment test refers to selective rule piston-shaped free from flaw rock core, and the diameter of rock core is 10cm, and length is 20cm.
Further, rock sample is carried out man seam to refer to and make rock core inside produce cracking initiation crack rock sample by making seam instrument.
Further, crack rock sample is loaded core holding unit, and adds predetermined confined pressure and comprise: the highest withstand voltage of described core holding unit is 70MPa, and maximum temperature is 150 DEG C; High pressure syringe pump is to the confined pressure space conveying high-pressure medium of core holding unit, for exerting pressure to the rock core be wrapped in core holding unit, high pressure syringe pump is by the force value of computer controlled automatic high pressure syringe pump mesohigh medium, high-pressure medium is high-pressure water body or gases at high pressure, the water or the gas that add confined pressure only contact with rubber sleeve, directly do not contact with core surface, to ensure the accuracy measured; The overburden pressure that predetermined confined pressure value and rock core bear under formation conditions is close, and its value is undertaken calculating and controlling by depth of stratum residing for rock sample, and its value can not change with the change of rock core pore pressure.
Further, in the rock core hole of crack rock sample, carry saturated air by air feed container, when rock core pore pressure balance is to experiment desirable value, stop saturated air and close air feed container comprising: the gases at high pressure in air feed container are dry air or nitrogen; Rock core pore pressure balance refers to that in the hole of rock core each position, gaseous tension is consistent; Pore pressure size should be close with the original gas-bearing formation pressure of goal in research block; Closing second switch valve makes high-pressure air source and rock core disconnect, and rock sample is in the pressure system of self-equilibrating.
Further, by closing the first controlled valve and second switch valve, open the 3rd controlled valve, make crack rock sample from gas in endpiece release rock core hole, record parameters data, comprise until gases at high pressure and high-pressure water body test end when the flow of endpiece is zero: control airshed size by the 4th controlled valve, with the gas of certain airshed release rock core pore interior and water body; Record airshed, discharge, accumulative airshed, accumulative discharge, gas-bearing formation pressure, experimental period data; The frequency of record experiment parameter is that interval is once per minute.
For the detailed explanation of the respective embodiments described above, its object is only to make an explanation to the present invention, so that the present invention can be understood better, but, it is limitation of the present invention that these descriptions can not become with any explanation, particularly, each feature described in various embodiments also can combination in any mutually, thus form other embodiments, except there being clearly contrary description, these features should be understood to can be applied in any one embodiment, and are also not only confined to described embodiment.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210291416.4A CN102830214B (en) | 2012-08-15 | 2012-08-15 | Dynamic physical simulation experiment method for water invasion of fractured gas reservoir with bottom water and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210291416.4A CN102830214B (en) | 2012-08-15 | 2012-08-15 | Dynamic physical simulation experiment method for water invasion of fractured gas reservoir with bottom water and device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102830214A CN102830214A (en) | 2012-12-19 |
| CN102830214B true CN102830214B (en) | 2015-07-08 |
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| CN103485769B (en) * | 2012-06-13 | 2016-05-25 | 中国科学院理化技术研究所 | A kind of sand-filling tube combination device of simulation fracture oil reservoir |
| CN104076125B (en) * | 2014-06-24 | 2016-07-27 | 中国石油大学(北京) | The iron and steel rock core on reusable simulation fracture leakage stratum and application process |
| CN104141490B (en) * | 2014-07-17 | 2016-08-31 | 中国石油天然气股份有限公司 | There are the judgement of Gas Reservoirs individual well water enchroachment (invasion) situation and gas well production yield control method and device |
| CN105158116B (en) * | 2015-09-22 | 2018-05-18 | 山东科技大学 | It is a kind of that the device that gas is lost in high speed gas injection process is measured using large scale rock core |
| CN105604545B (en) * | 2015-12-17 | 2019-05-07 | 中国石油天然气股份有限公司 | A kind of experimental provision and method for simulating gas reservoir water enchroachment (invasion) |
| CN106285645B (en) * | 2016-08-23 | 2019-04-16 | 东北石油大学 | A kind of low permeability fractured edge-bottom water gas reservoir water enchroachment (invasion) positioning physical simulating method |
| CN106353483B (en) * | 2016-10-17 | 2018-12-18 | 中国海洋石油集团有限公司 | For simulating the experimental provision of more than two payzone comprehensive exploitations |
| CN107478807A (en) * | 2017-09-01 | 2017-12-15 | 中国石油天然气股份有限公司 | Plain heterogeneity model water enchroachment (invasion) analogue experiment method and its experimental provision |
| CN107764718A (en) * | 2017-11-14 | 2018-03-06 | 北京科技大学 | Fractured shale gas-water phases flowing fracture condudtiviy evaluating apparatus and method |
| CN107905769A (en) * | 2017-11-21 | 2018-04-13 | 中国石油天然气股份有限公司 | Side, the more well production water enchroachment (invasion) physical simulation experiment system and method for bottomwater gas field |
| CN108593877A (en) * | 2018-01-05 | 2018-09-28 | 中国石油天然气股份有限公司 | A kind of gas reservoir step pressure reducing mining type physical simulation experiment method |
| CN108505987A (en) * | 2018-04-02 | 2018-09-07 | 西南石油大学 | A kind of gas reservoir difference fractue spacing pattern water enchroachment (invasion) experimental provision and method |
| CN109307755A (en) * | 2018-10-25 | 2019-02-05 | 中国石油天然气股份有限公司 | Gas reservoir water enchroachment (invasion) and water pumping gas production physical simulation experiment device and method |
| CN109519156B (en) * | 2018-11-01 | 2020-10-02 | 中海石油(中国)有限公司上海分公司 | Seepage experiment method for side water sandstone gas reservoir water drive profile model |
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| JPS59119239A (en) * | 1982-12-27 | 1984-07-10 | Meisho Kk | Method and device for water permeability test |
| CN1015661B (en) * | 1988-12-19 | 1992-02-26 | 大庆石油管理局勘探开发研究院 | Experiment method for measuring relative penetration of oil, gas and water in reservoir core |
| US5263360A (en) * | 1992-04-17 | 1993-11-23 | Halliburton Company | Low permeability subterranean formation testing methods and apparatus |
| WO2011135466A1 (en) * | 2010-04-30 | 2011-11-03 | Schlumberger Canada Limited | System and method for determining the effect of water-based additives on oil recovery |
| CN201780251U (en) * | 2010-07-26 | 2011-03-30 | 长江大学 | Dynamic contamination assessing experimental instrument for coal seam core under high-temperature and high-pressure conditions |
| CN102095833B (en) * | 2010-12-17 | 2014-11-19 | 中国石油天然气股份有限公司 | Test method for intrastratal nonhomogeneous model |
| CN202502089U (en) * | 2011-12-05 | 2012-10-24 | 中国石油大学(华东) | Device for diagenesis simulation experiments |
| CN202814960U (en) * | 2012-08-15 | 2013-03-20 | 中国石油天然气股份有限公司 | Physical simulation experimental device for water invasion performance of fissured gas reservoir with bottom water |
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